celestial mechanics

noun 0.705

space navigation

noun 0.676

astrogation

noun 0.668

celestial

noun 0.657

celestial object

noun 0.599

celestial sphere

noun 0.595

air navigation

noun 0.593

astrometry

noun 0.580

satellite navigation system

noun 0.580

navigational chart

noun 0.579

celestial blue

noun 0.572

astrolabe

noun 0.560

navigation

noun 0.554

sailing

noun 0.552

astrology

noun 0.545

seafaring

noun 0.543

geodesy

noun 0.542

sextant

noun 0.541

seamanship

noun 0.523

avigation

noun 0.521

geocentrism

noun 0.518

optical astronomy

noun 0.517

marine chronometer

noun 0.515

pilotage

noun 0.514

magnetic compass

noun 0.513

celeste

noun 0.511

star chart

noun 0.510

cosmography

noun 0.508

naval science

noun 0.508

astronautics

noun 0.506

sidereal time

noun 0.506

satnav

noun 0.505

ecliptic

noun 0.504

space science

noun 0.502

nautical mile

noun 0.502

dead reckoning

noun 0.501

celestine

noun 0.500